Pith Number

pith:SYW2OJ6Q

pith:2021:SYW2OJ6QWX6K2FRFFA7WA6DRU7

not attested not anchored not stored refs pending

Dual-high-frequency VLBI study of blazar-jet brightness-temperature gradients and collimation profiles

A.-K. Baczko, E. Ros, J. Ringholz, K. Mannheim, M. Kadler, P. R. Burd

arxiv:2112.04403 v1 · 2021-12-08 · astro-ph.HE

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{SYW2OJ6QWX6K2FRFFA7WA6DRU7}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-07-05T04:09:41.806117Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

962da727d0b5fcad1625283f607871a7c478dca3d5848951a2d0cc433d7cd2d4

Aliases

arxiv: 2112.04403 · arxiv_version: 2112.04403v1 · doi: 10.48550/arxiv.2112.04403 · pith_short_12: SYW2OJ6QWX6K · pith_short_16: SYW2OJ6QWX6K2FRF · pith_short_8: SYW2OJ6Q

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/SYW2OJ6QWX6K2FRFFA7WA6DRU7 \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 962da727d0b5fcad1625283f607871a7c478dca3d5848951a2d0cc433d7cd2d4

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "7c34890094c24f1588756854f9b170ac11fdc57213d322622699d3b2d3156344",
    "cross_cats_sorted": [],
    "license": "http://creativecommons.org/licenses/by/4.0/",
    "primary_cat": "astro-ph.HE",
    "submitted_at": "2021-12-08T16:49:02Z",
    "title_canon_sha256": "64b74c32d9db50f098a8219a568f761fec1a63e5fd3a1c1ef7cf95bc6f40918c"
  },
  "schema_version": "1.0",
  "source": {
    "id": "2112.04403",
    "kind": "arxiv",
    "version": 1
  }
}